Analysis and numerical simulation of a novel gas–liquid multiphase scroll pump. (December 2015)

• Record Type: Journal Article
• Authors: Wang, Jun; Zha, Haibin; McDonough, J.M.; Zhang, Dahai
• Is Part Of: International journal of heat and mass transfer. Volume 91(2015:Dec.)
• Page Start: 27
• Page End: 36
• Publication Date: 2015-12
• Subjects: Multiphase scroll pump -- Scroll wrap profile -- Flank clearance -- Numerical simulation -- Fluid distribution; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2015.07.086
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: A new multiphase scroll pump for gas–liquid mixtures is proposed. The new method for displacement multiphase pump is proposed. A type of scroll wrap profile with flank clearance is presented. Numerical simulations of multiphase scroll pump are conducted. Abstract: This paper presents analysis of a novel multiphase scroll pump to transport gas–liquid two-phase mixtures, in which each compression chamber has a flank clearance which forms a pressure unloading gap connected to the discharge port. Therefore, this multiphase scroll pump has the function of unloading gas–liquid mixture pressure automatically during the compression process, so the frequently occurring problem of liquid slugging in displacement multiphase pumps is solved. Hence, safety and reliability are improved. In this paper the working process model of the presented multiphase scroll pump is discussed; and equations of fluid motion and geometry of scroll wrap profiles are given. Grid generation and numerical methods are discussed, and numerical simulation of the working process for a multiphase scroll pump is conducted using the commercial CFD software package Fluent, with results suggesting key parameter values for design of multiphase scroll pumps.